FR2374730A1 - Procede d'ajustement de composants electroniques multi-couches tels que des condensateurs - Google Patents

Procede d'ajustement de composants electroniques multi-couches tels que des condensateurs

Info

Publication number
FR2374730A1
FR2374730A1 FR7638188A FR7638188A FR2374730A1 FR 2374730 A1 FR2374730 A1 FR 2374730A1 FR 7638188 A FR7638188 A FR 7638188A FR 7638188 A FR7638188 A FR 7638188A FR 2374730 A1 FR2374730 A1 FR 2374730A1
Authority
FR
France
Prior art keywords
internal
electrodes
electrode
hollowing out
capacitors
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR7638188A
Other languages
English (en)
Other versions
FR2374730B1 (fr
Inventor
Pascal Le Gal
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eurofarad EFD SAS
Original Assignee
Eurofarad EFD SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eurofarad EFD SAS filed Critical Eurofarad EFD SAS
Priority to FR7638188A priority Critical patent/FR2374730A1/fr
Publication of FR2374730A1 publication Critical patent/FR2374730A1/fr
Application granted granted Critical
Publication of FR2374730B1 publication Critical patent/FR2374730B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/002—Details
    • H01G4/255—Means for correcting the capacitance value

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Ceramic Capacitors (AREA)
  • Fixed Capacitors And Capacitor Manufacturing Machines (AREA)

Abstract

On creuse localement en 30 la céramique d'un condensateur multi-couches jusqu'à atteindre deux conducteurs internes 11 et 21 de façon à en réduire la taille d'une manière prédéfinie, ce qui produit l'ajustement de la valeur du condensateur. Ensuite, on masque les électrodes superficielles 10 et 20, et on soumet temporairement les composants, en milieu vibré, à l'action d'un réactif chimique attaquant le matériau des conducteurs internes. Le masquage des électrodes superficielles est alors enlevé. Finalement, on peut reboucher le trou à l'aide d'un vitrocérame chargé en matériau diélectrique. Application à l'obtention de condensateurs multi-couches de précision.
FR7638188A 1976-12-17 1976-12-17 Procede d'ajustement de composants electroniques multi-couches tels que des condensateurs Granted FR2374730A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7638188A FR2374730A1 (fr) 1976-12-17 1976-12-17 Procede d'ajustement de composants electroniques multi-couches tels que des condensateurs

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7638188A FR2374730A1 (fr) 1976-12-17 1976-12-17 Procede d'ajustement de composants electroniques multi-couches tels que des condensateurs

Publications (2)

Publication Number Publication Date
FR2374730A1 true FR2374730A1 (fr) 1978-07-13
FR2374730B1 FR2374730B1 (fr) 1981-06-12

Family

ID=9181215

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7638188A Granted FR2374730A1 (fr) 1976-12-17 1976-12-17 Procede d'ajustement de composants electroniques multi-couches tels que des condensateurs

Country Status (1)

Country Link
FR (1) FR2374730A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469787A1 (fr) * 1979-11-13 1981-05-22 Eurofarad Ajustage de condensateurs a dielectrique plastique metallise, et condensateurs ainsi ajustes
EP0246134A1 (fr) * 1986-05-13 1987-11-19 Compagnie Europeenne De Composants Electroniques Lcc Condensateur de précision à ajustement de la capacité nominale
US4731697A (en) * 1987-05-05 1988-03-15 Avx Corporation Arc resistant trimable ceramic capacitor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2469787A1 (fr) * 1979-11-13 1981-05-22 Eurofarad Ajustage de condensateurs a dielectrique plastique metallise, et condensateurs ainsi ajustes
EP0246134A1 (fr) * 1986-05-13 1987-11-19 Compagnie Europeenne De Composants Electroniques Lcc Condensateur de précision à ajustement de la capacité nominale
FR2598848A1 (fr) * 1986-05-13 1987-11-20 Europ Composants Electron Condensateur de precision a ajustement de la capacite nominale
US4731697A (en) * 1987-05-05 1988-03-15 Avx Corporation Arc resistant trimable ceramic capacitor

Also Published As

Publication number Publication date
FR2374730B1 (fr) 1981-06-12

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Legal Events

Date Code Title Description
ST Notification of lapse